Browsing by Subject "Energia elèctrica--Distribució"
Now showing items 1-20 of 46
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A behavioural dynamic model for constant power loads in single-phase AC systems
(2021-09-01)
Article
Open AccessConstant power loads (CPLs) in power systems have a destabilizing effect that gives rise to significant oscillations or to network collapse, motivating the development of new methods to analyse their effect in AC and DC ... -
A faster resonance mode analysis approach based on a modified shifted-inverse power iteration method
(Institute of Electrical and Electronics Engineers (IEEE), 2023-12-01)
Article
Open AccessResonance mode analysis (RMA) is a promising approach for harmonic power quality and stability studies because it enables the characterization of resonances. However, RMA requires the determination of the eigenpair ... -
A flexibility management system for behind-the-meter flexibility with distributed energy resources: A sensitivity analysis
(Elsevier Ltd, 2023-12)
Article
Open AccessThe increasing uncertainty in power systems with high penetration levels of renewable energy fosters the research on the control, management, and operation of distributed energy resources and its coupling with the current ... -
A mathematical model for the scheduling of virtual microgrids topology into an active sistribution network
(Multidisciplinary Digital Publishing Institute, 2020-10-15)
Article
Open AccessThis article presents a method based on a mathematical optimization model for the scheduling operation of a distribution network (DN). The contribution of the proposed method is that it permits the configuration and operation ... -
A robust islanding detection method with zero-non-detection zone for distribution systems with DG
(2021-12-01)
Article
Open AccessThis paper proposes a strategy for detecting unintentional islanding operations (IOs) in distribution networks (DNs) with distributed generation (DG), which eliminating the non-detection zone (NDZ). This hybrid method ... -
Analyse De Sensibilite Sur Un Modele Stochastique Pour La Prevision Des Consommations Electriques
(Universitat Politècnica de Catalunya, 2021-11-05)
Master thesis
Open Access
Covenantee: ENEDIS / École centrale de Nantes / IMT AtlantiqueCe rapport présente le travail effectué lors du stage TFE d’une durée de 5 mois et demi au sein de l’entreprise Enedis, et en collaboration avec l’IMT Atlantique. Ces deux entités sont membres de la chaire industrielle ... -
Analysis of harmonic distortion influence in a distributed synchronous generator
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessIn conventional electrical systems, the generators are located far from the load centers. However, considering the distributed generation, the impact of harmonic distortion in the generators cannot be neglected.Thus, this ... -
Anàlisi de la sostenibilitat del sistema energètic del país: una perspectiva quantificada en vista a la futura transició energética
(Universitat Politècnica de Catalunya, 2024-05-14)
Master thesis
Open AccessEn el present projecte es realitzarà un estudi sobre la viabilitat del sistema elèctric de país per tal d’abastir la demanada energètica sense l’ús de fonts d’energia provinents dels combustibles fòssils. La humanitat està ... -
Análisis sobre el impacto del fraude en instalaciones eléctricas interiores conectadas en baja tensión
(2024-04)
Research report
Open AccessEste documento analiza: (1) el marco normativo de las instalaciones interiores, sus elementos y los criterios de diseño, (2) las distintas modalidades de fraude, enganches directos, enganches con contrato y puntualmente ... -
Comparative analysis of fault detection and classification techniques for HVDC grids protection
(The Institution of Engineering and Technology (IET), 2020)
Conference report
Restricted access - publisher's policyDealing with high short-circuit currents with a fast rise rate in Voltage Source Converters (VSCs) still poses as a challenge for High Voltage Direct Current (HVDC) multiterminal system (MTDC) reliability. Several fault ... -
Dc voltage droop control design for mmc-based multiterminal hvdc grids
(Institute of Electrical and Electronics Engineers (IEEE), 2020-01-20)
Article
Open AccessThis article addresses the design of the DC voltage droop control in modular multilevel converter (MMC)-based multiterminal HVDC grids. First, two energy-based control approaches, namely classic and cross control, are ... -
Disseny i simulació d'una microxarxa en DC com a sistema d'alimentació d'un edifici amb objecte de determinar models de transició d'AC a DC i models de col·laborativitat entre sistemes
(Universitat Politècnica de Catalunya, 2020-10-28)
Bachelor thesis
Open AccessEl panorama energètic a escala global cada cop és més estricte davant la incorporació d'energies renovables tant en l'àmbit domèstic com a escala de producció massiva d'energia (companyies elèctriques), el que està ... -
Distance protection algorithm for multiterminal HVDC systems using the Hilbert–Huang transform
(2020-08)
Article
Open AccessMultiterminal high-voltage direct current (HVDC) systems still need advances in terms of protection in order to improve their reliability. In this context, the distance protection can play a major role by adding selectivity ... -
EMTP model of a bidirectional cascaded multilevel solid state transformer for distribution system studies
(2017-04-01)
Article
Open AccessThis paper presents a time-domain model of a MV/LV bidirectional solid state transformer (SST). A multilevel converter configuration of the SST MV side is obtained by cascading a single-phase cell made of the series ... -
Estudi dels coeficients de repartiment en les comunitats energètiques
(Universitat Politècnica de Catalunya, 2024-05-17)
Master thesis
Open AccessAquest treball s’alinea amb els objectius de sostenibilitat i transició energètica que estem vivint actualment. És per això que l’objectiu principal és estudiar com afecta l’aplicació dels coeficients de repartiment en ... -
Flexible smart energy-management systems using an online tendering process framework for microgrids
(2023-07-01)
Article
Open AccessCurrently, modern power grids are evolving into complex cyber-physical systems integrated with distributed energy resources that can be controlled and monitored by computer-based algorithms. Given the increasing prevalence ... -
From time-series to hybrid models: advancements in short-term load forecasting embracing smart grid paradigm
(Multidisciplinary Digital Publishing Institute, 2024-05-23)
Article
Open AccessThis review paper is a foundational resource for power distribution and management decisions, thoroughly examining short-term load forecasting (STLF) models within power systems. The study categorizes these models into ... -
HVDC-based modular multilevel converter in the STATCOM operation mode
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyIn a futuristic vision, deeply interconnected ac and dc networks are expected, which would be restructured over the time in order to maximize the power transmission efficiency. In some grid configurations, grid-tied inverters ... -
Identification of correct phase connection based on smart meter data
(Universitat Politècnica de Catalunya, 2024-06-30)
Master thesis
Open Access
Covenantee: VATTENFALLPhase connections of end-users in electricity distribution are conventionally fixed during the first installation and remain so unless there is a specific problem or alteration in the network. However, a wrong phase ... -
Implantació de la automatització dels processos de contractació i facturació d'autoconsums i canvi de formats de la missatgeria amb distribuïdora
(Universitat Politècnica de Catalunya, 2024-05-17)
Master thesis
Restricted access - confidentiality agreementDurant els darrers anys, coincidint amb el context d’emergència climàtica i la volatilitat dels preus de l’electricitat, cada vegada són més els consumidors que aposten per una modalitat de consum més ecològica com és ...